Glue outlet mechanism and gluing equipment

Abstract

The glue discharging mechanism comprises a cylinder body and a glue pushing piece, the cylinder body is provided with a containing cavity, a first glue outlet, a second glue outlet and a glue inlet, the first glue outlet, the second glue outlet and the glue inlet are suitable for being communicated with the containing cavity, the containing cavity is used for containing glue, the glue pushing piece comprises a piston and a push rod, and the piston is arranged in the containing cavity in a reciprocating motion mode. One end of the push rod is connected with the piston to drive the piston to move. The piston is configured to move in the first direction so as to push the glue in the containing cavity to be discharged from the first glue outlet, and can move in the second direction opposite to the first direction so as to push the glue in the containing cavity to be discharged from the second glue outlet. According to the glue discharging mechanism disclosed by the embodiment of the utility model, the glue discharging amount of the glue discharging mechanism in a cycle of one-time reciprocating motion of the glue pushing piece can be increased, and the gluing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of glue coating, in particular to a glue discharging mechanism and glue coating equipment. Background Art

[0002] In the related art, the glue discharging mechanism of the glue coating equipment is usually provided with a glue outlet for discharging glue and a glue pushing member for pushing glue out of the glue outlet, and the glue pushing member pushes the glue in the glue discharging mechanism out of the glue outlet through reciprocating motion. However, due to the structural limitation of the glue discharging mechanism, the glue discharging amount of the glue discharging mechanism is small in one reciprocating motion cycle of the glue pushing member, resulting in low glue coating efficiency. Therefore, improvement is needed. Utility Model Content

[0003] In view of the above problems, the utility model proposes a glue discharging mechanism, which can increase the glue discharging amount of the glue discharging mechanism in a cycle of a reciprocating motion of a glue pushing member, thereby improving the glue coating efficiency.

[0004] In the first aspect, the utility model proposes a glue discharging mechanism, comprising: a cylinder body, the cylinder body having a accommodating chamber and a first glue outlet, a second glue outlet and a glue inlet suitable for being connected to the accommodating chamber, the accommodating chamber being used to accommodate glue; a glue pushing member, the glue pushing member comprising a piston and a push rod, the piston being reciprocatingly arranged in the accommodating chamber, one end of the push rod being connected to the piston to drive the movement of the piston; wherein the piston is configured to be movable along a first direction for pushing the glue in the accommodating chamber to be discharged from the first glue outlet, and movable along a second direction opposite to the first direction for pushing the glue in the accommodating chamber to be discharged from the second glue outlet.

[0005] In the above technical solution, by setting the first glue outlet and the second glue outlet, when the piston of the rubber pushing member moves along the first direction, the glue in the accommodating chamber is discharged from the first glue outlet connected to the accommodating chamber, and when the piston of the rubber pushing member moves along the second direction opposite to the first direction, the glue in the accommodating chamber is discharged from the second glue outlet connected to the accommodating chamber. During the reciprocating motion of the piston of the rubber pushing member, the glue discharge mechanism is discharging glue, and bidirectional glue discharge can be achieved. Therefore, the first glue outlet and the second glue outlet increase the glue discharge amount of the glue discharge mechanism in one reciprocating motion cycle of the rubber pushing member, thereby improving the glue coating efficiency.

[0006] In some embodiments, a first connecting port and a second connecting port are formed on the wall of the accommodating cavity, the first glue outlet is suitable for communicating with the accommodating cavity through the first connecting port, and the second glue outlet is suitable for communicating with the accommodating cavity through the second connecting port, and the first connecting port and the second connecting port are located at both ends of the cylinder body along the first direction.

[0007] In the above technical solution, by setting the first connecting port and the second connecting port, and making the first connecting port and the second connecting port located at the two ends of the cylinder body along the first direction, when the piston of the rubber pushing member moves along the first direction, the glue in the accommodating chamber can be discharged from the first glue outlet through the first connecting port, and when the piston of the rubber pushing member moves along the second direction opposite to the first direction, the glue in the accommodating chamber can be discharged from the second glue outlet through the second connecting port, so that the purpose of the glue discharging mechanism discharging glue can be conveniently achieved during one reciprocating motion of the piston.

[0008] In some embodiments, a third connecting port is formed on the wall of the accommodating cavity, the glue inlet is suitable for connecting with the accommodating cavity through the third connecting port, and the third connecting port and the second connecting port are located at the same end of the cylinder body along the first direction; wherein, the accommodating cavity can be selectively connected with one of the glue inlet and the second glue outlet and can be selectively separated from the other of the glue inlet and the second glue outlet.

[0009] In the above technical solution, the glue inlet is connected with the accommodating chamber via the third connecting port, and glue can be supplied to the accommodating chamber via the glue inlet. Since the third connecting port and the second connecting port are located at the same end of the cylinder body along the first direction, the second glue outlet is isolated from the accommodating chamber to prevent the glue entering the accommodating chamber from flowing out from the second glue outlet via the second connecting port during the process of supplying glue from the glue inlet to the accommodating chamber, so as to better measure the amount of glue contained in the accommodating chamber. After the amount of glue in the accommodating chamber reaches a certain glue discharge requirement, the piston moves along the first direction so that the glue contained in the accommodating chamber is discharged from the first glue outlet. , which is also convenient for more accurate measurement of the glue output from the first glue outlet; the second glue outlet is connected with the accommodating chamber via the second connecting port, and the glue in the accommodating chamber can be discharged from the second glue outlet. Since the third connecting port and the second connecting port are located at the same end of the cylinder body along the first direction, isolating the glue outlet from the accommodating chamber can prevent part of the glue in the accommodating chamber from being squeezed out from the glue outlet during the process of pushing the glue in the accommodating chamber to be discharged from the second glue outlet by the piston moving along the second direction. In this way, it is ensured that the glue in the accommodating chamber is discharged from the second glue outlet, thereby facilitating more accurate measurement of the glue output from the second glue outlet.

[0010] In some embodiments, the third communication port and the second communication port are the same communication port.

[0011] In the above technical solution, by forming the third connecting port and the second connecting port into the same connecting port, the glue outlet and the second glue outlet can be connected to the accommodating chamber through the connecting port. Such an arrangement can reduce the number of connecting ports of the glue outlet structure, making the structure of the glue outlet mechanism simple and easy to form, and is also beneficial to improving the structural strength of the glue outlet structure.

[0012] In some embodiments, the cylinder body includes a cylinder body, a three-way pipe and a glue outlet pipe, the accommodating cavity is defined in the cylinder body, one end of the glue outlet pipe is connected to the first connecting port and the other end of the glue outlet pipe is formed with the first glue outlet, the three-way pipe includes a first tube body, a second tube body and a third tube body, the first tube body is connected to the second connecting port, one end of the second tube body is connected and connected to the first tube body, the other end of the second tube body is formed with the second glue outlet, one end of the third tube body is connected and connected to the first tube body, and the other end of the third tube body is formed with the glue inlet.

[0013] In the above technical solution, by providing a three-way pipe including the first tube body, the second tube body and the third tube body, the glue entering the third tube body and the first tube body through the glue inlet can enter the accommodating cavity through the second connecting port, so that the glue in the accommodating cavity can be discharged from the second glue outlet through the second connecting port and the second tube body. By providing a three-way pipe, the three-way pipe is connected to the accommodating cavity through the second connecting port, which can reduce the number of connecting ports on the accommodating cavity, thereby making the structure of the cylinder body simpler.

[0014] In some embodiments, the glue discharge mechanism includes: a first switch valve, arranged between the first tube body and the third tube body, for connecting or isolating the glue inlet and the accommodating cavity; a second switch valve, arranged between the second tube body and the third tube body, for connecting or isolating the second glue outlet and the accommodating cavity.

[0015] In the above technical solution, by setting the first switch valve and the second switch valve, when the piston moves along the first direction, the glue inlet and the accommodating chamber can be connected through the first switch valve, and the second glue outlet and the accommodating chamber can be isolated through the second switch valve, so that the glue in the accommodating chamber can be discharged through the first glue outlet; when the piston moves along the second direction, the glue inlet and the accommodating chamber can be isolated through the first switch valve, and the second glue outlet and the accommodating chamber can be connected through the second switch valve, so that the glue in the accommodating chamber can be discharged through the second glue outlet.

[0016] In some embodiments, the piston reciprocates between the first position and the second position. When the piston moves from the first position to the second position, the piston moves along the first direction, and when the piston moves from the second position to the first position, the piston moves along the second direction. There is also a third position between the first position and the second position, and the second connecting port and the third connecting port are both located between the first position and the third position, and the first connecting port is located on the side of the second position away from the third position.

[0017] In the above technical solution, by making the second connecting port and the third connecting port both located between the first position and the third position, and making the first connecting port located on the side of the second position away from the third position, the positions of the first connecting port, the second connecting port and the third connecting port are reasonably arranged, so as to facilitate the purpose of the glue discharging mechanism discharging glue during the reciprocating motion of the piston, so that when the piston moves from the first position to the second position, the glue discharging mechanism discharges glue through the first glue discharging port, and when the piston moves from the second position to the first position, the glue discharging mechanism discharges glue through the second glue discharging port.

[0018] In some embodiments, the accommodating cavity has a first side wall and a second side wall along the first direction, the first connecting port is formed on the first side wall, the push rod is passed through the second side wall, the second connecting port is formed on the peripheral wall of the accommodating cavity, and the circumference of the accommodating cavity is perpendicular to the first direction.

[0019] In the above technical solution, by forming the first communication port on the first side wall of the accommodating chamber, the push rod is provided through the second side wall of the accommodating chamber, and the second communication port is formed on the peripheral wall of the accommodating chamber, the first communication port, the second communication port and the push rod are respectively provided on different walls of the accommodating chamber, the positions are reasonably provided and the accommodating chamber as a whole can maintain a high structural strength, thereby making the structural layout of the glue dispensing mechanism reasonable. By providing the push rod through the second side wall of the accommodating chamber, the push rod can drive the piston to apply positive pressure to the glue in the accommodating chamber along the first direction or along the second direction opposite to the first direction, so that the piston can more easily push the glue in the accommodating chamber to dispense.

[0020] In some embodiments, the second communication port is located on the bottom wall of the accommodating cavity.

[0021] In the above technical solution, when the piston moves along the second direction, the piston pushes the glue in the accommodating chamber to flow toward the second connecting port. By making the second connecting port located at the bottom wall of the accommodating chamber, the glue in the accommodating chamber will also flow toward the second connecting port under the action of gravity. Therefore, under the combined action of the gravity of the glue and the driving force of the piston, the glue in the accommodating chamber is easier to be discharged through the second connecting port and the second glue outlet connected to the second connecting port, so that the glue output per unit time of the first glue outlet and the second glue outlet of the glue outlet mechanism is easier to be consistent, thereby avoiding the glue outlet mechanism being unable to meet the use requirements due to the inconsistent glue output per unit time of the first glue outlet and the second glue outlet.

[0022] In some embodiments, the first glue outlet and the second glue outlet have the same glue outlet direction; and / or the first glue outlet and the second glue outlet have the same cross-sectional area.

[0023] In the above technical solution, by making the glue discharge direction of the first glue outlet the same as that of the second glue outlet, the glue discharge direction of the glue discharge mechanism through the first glue outlet and the glue discharge direction of the second glue outlet can be made consistent, so that the glue discharge mechanism can supply glue to the object receiving glue along the same glue discharge direction. By making the cross-sectional area of ​​the first glue outlet the same as that of the second glue outlet, the glue discharge amount of the glue discharge mechanism from the first glue outlet and the glue discharge amount from the second glue outlet can be made consistent, and the glue discharge pressure of the first glue outlet of the glue discharge mechanism and the glue discharge amount and glue discharge pressure when the glue is discharged from the second glue outlet can be made consistent, which is beneficial to improving the stability of the glue discharge amount of the glue discharge mechanism.

[0024] In a second aspect, the utility model provides a glue coating device, comprising: a glue supply mechanism, the glue supply mechanism having a glue supply port; a glue discharge mechanism of the embodiment of the first aspect of the utility model, the glue supply port being connected to the glue inlet.

[0025] In the above technical solution, by providing the above glue discharging mechanism, the glue discharging amount of the glue discharging mechanism in one reciprocating motion cycle of the glue pushing member can be increased, thereby improving the glue coating efficiency.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 It is a three-dimensional structural schematic diagram of a glue discharging mechanism according to some embodiments of the utility model;

[0029] Figure 2 yes Figure 1 A cross-sectional view of the glue discharging mechanism in FIG.

[0030] Figure 3 yes Figure 1 A front view of the glue discharging mechanism in FIG.

[0031] Figure 4 yes Figure 1 A top view of the glue discharging mechanism in FIG.

[0032] Figure 5 yes Figure 1 Side view of the glue dispensing mechanism in FIG.

[0033] Reference numerals:

[0034] 100. Glue discharging mechanism;

[0035] 1. Cylinder body; 11. Accommodating chamber; 111. First communication port; 112. Second communication port; 113. Third communication port; 12. First glue outlet; 13. Second glue outlet; 14. Glue inlet; 15. Cylinder body; 151. First side wall; 152. Second side wall; 153. Peripheral wall; 16. Three-way pipe; 161. First tube body; 162. Second tube body; 163. Third tube body; 17. Glue outlet pipe;

[0036] 2. Rubber pusher; 21. Piston; 22. Push rod;

[0037] 3. The first switch valve;

[0038] 4. The second switch valve. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0041] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0042] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0043] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0044] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0045] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0046] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0047] With the widespread application of glue coating technology, the requirements for the glue coating efficiency of glue coating equipment used for glue coating are getting higher and higher without reducing the glue coating quality. The glue coating equipment usually includes a glue discharging mechanism for discharging glue. The amount of glue discharged by the glue discharging mechanism in one reciprocating motion cycle affects the glue coating efficiency of the glue coating equipment.

[0048] In the related art, a glue discharging mechanism of a glue coating device is usually provided with a glue supply mechanism outside thereof to supply glue to the glue discharging mechanism, and a glue pusher and a glue outlet are usually provided inside the glue discharging mechanism to squeeze the glue out of the glue discharging mechanism. During the operation of the glue discharging mechanism, after a certain amount of glue is supplied to the glue discharging mechanism by the glue supply mechanism, the glue discharging mechanism will start to discharge glue. After all the glue in the glue discharging mechanism is discharged through the glue outlet through the movement of the glue pusher, the glue pusher will return to its initial position before the movement, and the glue pusher will thus complete a reciprocating motion. Then the external glue supply mechanism will supply glue to the glue discharging mechanism again, the glue pusher will start to move again, and the glue outlet will start to discharge glue again.

[0049] However, the applicant has noticed that due to the structural limitation of the glue discharging mechanism, only one-way glue discharging can be achieved during one reciprocating motion cycle of the glue pushing member, and the glue discharging amount of the glue discharging port of the glue discharging mechanism is relatively small.

[0050] Based on this, the applicant proposed a glue discharging mechanism, which comprises a first glue outlet, a second glue outlet and a glue inlet which are connected to the accommodating chamber of the cylinder body and a glue pushing member including a piston and a push rod, and the piston is reciprocatingly arranged in the accommodating chamber, one end of the push rod is connected to the piston to drive the movement of the piston, when the piston moves along a first direction, the piston pushes the glue in the accommodating chamber to be discharged from the first glue outlet; when the piston moves along a second direction opposite to the first direction, the piston pushes the glue in the accommodating chamber to be discharged from the second glue outlet.

[0051] In such a glue discharging mechanism, a glue inlet is provided on the cylinder of the glue discharging mechanism, and glue can be supplied to the accommodating cavity of the cylinder through the glue inlet. By providing the first glue outlet and the second glue outlet, when the piston of the glue pushing member moves along the first direction, glue is discharged from the first glue outlet, and when the piston of the glue pushing member moves along the second direction, glue is discharged from the second glue outlet, so that the glue discharging mechanism is discharging glue during the reciprocating motion of the piston of the glue pushing member, and the first glue outlet and the second glue outlet increase the glue discharging amount of the glue discharging mechanism in one reciprocating motion cycle of the glue pushing member.

[0052] The glue discharging mechanism of the utility model can be widely used in many production fields, such as batteries, electronic equipment, automobiles, medical equipment and other fields, and the embodiments of the utility model are not limited to this. For example, the glue discharging mechanism disclosed in the utility model can be applied to the battery field, and can involve battery cells, battery monomers, battery boxes, etc. in the battery field without limitation.

[0053] For example, the glue dispensing mechanism of the utility model can be used to apply glue to the battery cell, so that the inside of the battery cell becomes a sealed environment. The glue dispensing mechanism of the utility model can also be used to connect multiple battery cells. The multiple battery cells are bonded into a whole through the glue discharged by the glue dispensing mechanism, which can be used to improve the collision safety of the battery cell. The glue dispensing mechanism of the utility model can also be used to bond the battery cell to the box body. The glue can increase the structural strength of the battery box, and the glue connected between the battery cell and the box body can also be used as a heat conducting medium. The glue layer plays a heat conducting role and is used to transfer the heat generated by the battery cell to the box body, and further transfer it to the water cooling system through the box body, so that the battery box can dissipate heat.

[0054] The glue discharging mechanism disclosed in the embodiment of the utility model may also have a metering function, and the glue discharging amount of the glue discharging mechanism may be controlled by metering the glue in the accommodating cavity of the cylinder body of the glue discharging mechanism.

[0055] Reference below Figure 1-Figure 5 The glue discharging mechanism 100 according to the embodiment of the present utility model is described.

[0056] refer to Figure 1-Figure 2 In the first aspect, the utility model proposes a glue discharging mechanism 100, comprising: a cylinder body 1 and a glue pushing member 2, wherein the cylinder body 1 has a accommodating chamber 11 and a first glue outlet 12, a second glue outlet 13 and a glue inlet 14 suitable for communicating with the accommodating chamber 11, and the accommodating chamber 11 is used to accommodate glue. The glue pushing member 2 comprises a piston 21 and a push rod 22, wherein the piston 21 is reciprocatingly disposed in the accommodating chamber 11, and one end of the push rod 22 is connected to the piston 21 to drive the piston 21 to move. The piston 21 is configured to be movable in a first direction to push the glue in the accommodating chamber 11 to be discharged from the first glue outlet 12, and to be movable in a second direction opposite to the first direction to push the glue in the accommodating chamber 11 to be discharged from the second glue outlet 13.

[0057] For example, when the piston 21 moves in a first direction, the piston 21 is used to push the glue in the accommodating chamber 11 out of the first glue outlet 12; when the piston 21 moves in a second direction opposite to the first direction, the piston 21 is used to push the glue in the accommodating chamber 11 out of the second glue outlet 13.

[0058] The push rod 22 can drive the piston 21 to move by applying a force to the part of the push rod 22 located outside the cylinder body 1, and the force can be applied manually or by a driving mechanism, which can be an electric device or a pneumatic device.

[0059] During the operation of the glue discharging mechanism 100, the accommodating chamber 11 of the cylinder body 1 can receive external glue supply through the glue inlet 14 connected to the accommodating chamber 11. The push rod 22 of the glue pushing member 2 is used to receive power, so that one end of the push rod 22 can drive the piston 21 connected thereto to reciprocate relative to the accommodating chamber 11, and the piston 21 can reciprocate in a first direction and a second direction opposite to the first direction. The reciprocating movement of the piston 21 causes the glue in the accommodating chamber 11 to be discharged through the first glue outlet 12 or the second glue outlet 13 connected to the accommodating chamber 11.

[0060] For example, the working process of the glue discharging mechanism 100 during one reciprocating motion of the piston 21 is as follows: first, the external glue supply mechanism supplies glue to the accommodating chamber 11 through the glue inlet 14 for the first time; then, the piston 21 starts to move in the first direction, and the piston 21 pushes the glue in the accommodating chamber 11 to be discharged from the first glue outlet 12; during the movement of the piston 21 in the first direction, the external glue supply mechanism supplies glue to the accommodating chamber 11 for the second time through the glue inlet 14; then, when the piston 21 starts to move in the second direction, the piston 21 pushes the glue in the accommodating chamber 11 for the second time to be discharged from the second glue outlet 13. In this way, the glue discharging mechanism 100 completes one reciprocating motion of the piston 21.

[0061] In the above technical scheme, by setting the first glue outlet 12 and the second glue outlet 13, when the piston 21 of the rubber pushing member 2 moves along the first direction, the first glue outlet 12 discharges glue, and when the piston 21 of the rubber pushing member 2 moves along the second direction opposite to the first direction, the second glue outlet 13 discharges glue. In this way, during the reciprocating motion of the piston 21 of the rubber pushing member 2, the glue discharging mechanism 100 is discharging glue, and two-way glue discharging can be achieved. Therefore, the first glue outlet 12 and the second glue outlet 13 increase the glue discharge amount of the glue discharging mechanism 100 in one reciprocating motion cycle of the rubber pushing member 2, thereby improving the glue discharge efficiency.

[0062] refer to Figure 2 In some embodiments, a first connecting port 111 and a second connecting port 112 are formed on the wall of the accommodating chamber 11, the first glue outlet 12 is suitable for communicating with the accommodating chamber 11 through the first connecting port 111, and the second glue outlet 13 is suitable for communicating with the accommodating chamber 11 through the second connecting port 112, and the first connecting port 111 and the second connecting port 112 are located at both ends of the cylinder body 1 along the first direction.

[0063] The first communication port 111 and the second communication port 112 are located at both ends of the cylinder 1 along the first direction, which means that the first communication port 111 is located at one end of the cylinder 1 along the first direction, and the second communication port 112 is located at the other end of the cylinder 1 along the first direction.

[0064] When the piston 21 moves along a first direction, the piston 21 pushes the glue in the accommodating chamber 11 to flow toward the first connecting port 111 located at one end of the cylinder body 1 in the first direction, so that the glue in the accommodating chamber 11 is discharged from the first glue outlet 12 through the first connecting port 111; when the piston 21 moves along a second direction opposite to the first direction, the piston 21 pushes the glue in the accommodating chamber 11 to flow toward the second connecting port 112 located at the other end of the cylinder body 1 in the first direction, so that the glue in the accommodating chamber 11 is discharged from the second glue outlet 13 through the second connecting port 112.

[0065] In the above technical solution, by setting the first connecting port 111 and the second connecting port 112, and making the first connecting port 111 and the second connecting port 112 located at the two ends of the cylinder body 1 along the first direction, when the piston 21 of the rubber pushing member 2 moves along the first direction, the glue in the accommodating chamber 11 can be discharged from the first glue outlet 12 through the first connecting port 111, and when the piston 21 of the rubber pushing member 2 moves along the second direction opposite to the first direction, the glue in the accommodating chamber 11 can be discharged from the second glue outlet 13 through the second connecting port 112, so that the purpose of the glue discharging mechanism 100 discharging glue can be conveniently achieved during the reciprocating motion of the piston 21.

[0066] refer to Figure 2 In some embodiments, a third communication port 113 is formed on the wall of the accommodating chamber 11, and the glue inlet 14 is adapted to be connected with the accommodating chamber 11 through the third communication port 113, and the third communication port 113 and the second communication port 112 are located at the same end of the cylinder body 1 along the first direction. The accommodating chamber 11 can be selectively connected with one of the glue inlet 14 and the second glue outlet 13, and the accommodating chamber 11 can be selectively separated from the other of the glue inlet 14 and the second glue outlet 13.

[0067] Optionally, the accommodating cavity 11 may be communicated with the glue inlet 14 and separated from the second glue outlet 13 , or the accommodating cavity 11 may be separated from the glue inlet 14 and communicated with the second glue outlet 13 .

[0068] By providing the third communication port 113 , when supplying glue to the accommodating cavity 11 , the glue flowing through the glue inlet 14 can enter the accommodating cavity 11 through the third communication port 113 .

[0069] For example, when the piston 21 moves along the first direction, the glue inlet 14 is connected to the accommodating chamber 11 and the second glue outlet 13 is separated from the accommodating chamber 11; when the piston 21 moves along the second direction, the glue inlet 14 is separated from the accommodating chamber 11 and the second glue outlet 13 is connected to the accommodating chamber 11.

[0070] When the piston 21 moves along the first direction, the glue inlet 14 is connected to the accommodating chamber 11 and the second glue outlet 13 is separated from the accommodating chamber 11. The first glue supply is first performed through the glue inlet 14 into the accommodating chamber 11. The piston 21 pushes the glue in the accommodating chamber 11 to flow toward the first connecting port 111 and the first glue outlet 12 along the first direction, and the glue is discharged from the first glue outlet 12. During the movement of the piston 21 along the first direction, the glue inlet 14 will supply glue to the accommodating chamber 11 for the second time, so that after the piston 21 ends the movement along the first direction, a large amount of glue is still contained in the accommodating chamber 11. Then, when the piston 21 moves along the second direction, the glue inlet 14 is separated from the accommodating chamber 11 and the second glue outlet 13 is connected to the accommodating chamber 11. The piston 21 pushes the glue that enters the accommodating chamber 11 through the second glue supply to flow toward the second connecting port 112 and the second glue outlet 13 along the second direction, and the glue is discharged from the second glue outlet 13.

[0071] In the above technical solution, the glue inlet 14 is connected with the accommodating chamber 11 through the third connecting port 113, and glue can be supplied to the accommodating chamber 11 through the glue inlet 14. Since the third connecting port 113 and the second connecting port 112 are located at the same end of the cylinder body 1 along the first direction, the second glue outlet 13 is isolated from the accommodating chamber 11 to prevent the glue entering the accommodating chamber 11 from flowing out from the second glue outlet 13 through the second connecting port 112 during the process of supplying glue from the glue inlet 14 to the accommodating chamber 11, so as to better measure the amount of glue contained in the accommodating chamber 11. After the amount of glue in the accommodating chamber 11 reaches a certain glue discharge requirement, the piston 21 moves along the first direction so that the glue contained in the accommodating chamber 11 is discharged from the first glue outlet 12 glue is discharged, which is also convenient for more accurately measuring the glue discharge amount of the first glue outlet 12; the second glue outlet 13 is connected with the accommodating chamber 11 through the second connecting port 112, and the glue in the accommodating chamber 11 can be discharged from the second glue outlet 13. Since the third connecting port 113 and the second connecting port 112 are located at the same end of the cylinder body 1 along the first direction, the glue outlet and the accommodating chamber 11 are separated, which can prevent part of the glue in the accommodating chamber 11 from being squeezed out from the glue outlet during the process of pushing the glue in the accommodating chamber 11 to be discharged from the second glue outlet 13 by the piston 21 moving along the second direction. In this way, it is ensured that the glue in the accommodating chamber 11 is discharged from the second glue outlet 13, thereby facilitating more accurately measuring the glue discharge amount of the second glue outlet 13.

[0072] refer to Figure 2 In some embodiments, the third communication port 113 and the second communication port 112 are the same communication port. The second glue outlet 13 and the glue inlet 14 are connected to the accommodating cavity 11 through the same communication port.

[0073] In the above technical solution, by forming the third connecting port 113 and the second connecting port 112 into the same connecting port, the glue outlet and the second glue outlet 13 can be connected to the accommodating chamber 11 through the connecting port. Such a setting can reduce the number of connecting ports of the glue outlet structure, so that the structure of the glue outlet mechanism 100 is simple and easy to form, and it is also beneficial to improve the structural strength of the glue outlet structure.

[0074] refer to Figure 3-Figure 5 In some embodiments, the cylinder body 1 includes a cylinder body 15, a three-way pipe 16 and a glue outlet pipe 17. The cylinder body 15 defines a accommodating chamber 11. One end of the glue outlet pipe 17 is connected to the first connecting port 111 and the other end of the glue outlet pipe 17 forms a first glue outlet 12. The three-way pipe 16 includes a first tube body 161, a second tube body 162 and a third tube body 163. The first tube body 161 is connected to the second connecting port 112. One end of the second tube body 162 is connected and communicated with the first tube body 161. The other end of the second tube body 162 forms a second glue outlet 13. One end of the third tube body 163 is connected and communicated with the first tube body 161. The other end of the third tube body 163 forms a glue inlet 14.

[0075] The second tube body 162 and the third tube body 163 of the three-way tube 16 are both connected to the first tube body 161, and the first tube body 161 is connected to the second connecting port 112, so that the first tube body 161, the second tube body 162 and the third tube body 163 are all connected to the accommodating cavity 11 through the second connecting port 112, that is, the three-way tube 16 is connected to the accommodating cavity 11 through the second connecting port 112.

[0076] When supplying glue to the accommodating chamber 11, the glue supply mechanism outside the glue discharging mechanism 100 supplies glue to the glue discharging mechanism 100 through the glue inlet 14 located at the other end of the third tube body 163, and the glue entering through the glue inlet 14 passes through the third tube body 163 and the first tube body 161, and finally enters the accommodating chamber 11 through the second connecting port 112 connected to the first tube body 161. When the piston 21 moves along the second direction, the glue in the accommodating chamber 11 enters the three-way pipe 16 through the second connecting port 112, passes through the first tube body 161 and the second tube body 162, and finally discharges the glue through the second glue outlet 13 located at the other end of the second tube body 162.

[0077] In the above technical solution, by providing a three-way pipe 16 including a first tube body 161, a second tube body 162 and a third tube body 163, the glue entering the third tube body 163 and the first tube body 161 through the glue inlet 14 can enter the accommodating chamber 11 through the second connecting port 112, so that the glue in the accommodating chamber 11 can be discharged from the second glue outlet 13 through the second connecting port 112 and the second tube body 162. By providing the three-way pipe 16, the three-way pipe 16 is connected to the accommodating chamber 11 through the second connecting port 112, so that the arrangement of the connecting ports on the accommodating chamber 11 can be reduced, thereby making the structure of the cylinder body 1 simpler.

[0078] refer to Figure 2 In some embodiments, the glue discharging mechanism 100 includes a first switch valve 3 and a second switch valve 4. The first switch valve 3 is disposed between the first tube body 161 and the third tube body 163, and is used to connect or disconnect the glue inlet 14 and the accommodating chamber 11. The second switch valve 4 is disposed between the second tube body 162 and the third tube body 163, and is used to connect or disconnect the second glue discharging port 13 and the accommodating chamber 11.

[0079] When the first switch valve 3 is opened, the first tube body 161 is connected to the third tube body 163, and the glue inlet 14 located at the other end of the third tube body 163 is connected to the accommodating chamber 11 through the first tube body 161 and the second connecting port 112; when the first switch valve 3 is closed, the first tube body 161 is separated from the third tube body 163, and the glue inlet 14 located at the other end of the third tube body 163 is separated from the accommodating chamber 11.

[0080] When the second switch valve 4 is opened, the second tube body 162 is connected to the third tube body 163, and the second glue outlet 13 located at the other end of the second tube body 162 is connected to the accommodating chamber 11 through the first tube body 161 and the second connecting port 112; when the second switch valve 4 is closed, the first tube body 161 is separated from the second tube body 162, and the second glue outlet 13 located at the other end of the second tube body 162 is separated from the accommodating chamber 11.

[0081] Optionally, the first switch valve 3 may be a ball valve, the second switch valve 4 may be a ball valve, and the three-way pipe 16 , the first switch valve 3 and the second switch valve 4 may together form a three-way ball valve structure.

[0082] In the above technical solution, by setting the first switch valve 3 and the second switch valve 4, when the piston 21 moves along the first direction, the glue inlet 14 can be connected with the accommodating chamber 11 through the first switch valve 3, and the second glue outlet 13 can be isolated from the accommodating chamber 11 through the second switch valve 4, so that the glue in the accommodating chamber 11 can be discharged through the first glue outlet 12; when the piston 21 moves along the second direction, the glue inlet 14 can be isolated from the accommodating chamber 11 through the first switch valve 3, and the second glue outlet 13 can be connected with the accommodating chamber 11 through the second switch valve 4, so that the glue in the accommodating chamber 11 can be discharged through the second glue outlet 13.

[0083] refer to Figure 2In some embodiments, the piston 21 reciprocates between the first position and the second position. When the piston 21 moves from the first position to the second position, the piston 21 moves along the first direction. When the piston 21 moves from the second position to the first position, the piston 21 moves along the second direction. There is also a third position between the first position and the second position. The second communication port 112 and the third communication port 113 are both located between the first position and the third position. The first communication port 111 is located on the side of the second position away from the third position.

[0084] For example, the following describes the glue discharging process of the glue discharging mechanism 100 by taking a cycle of a reciprocating motion of the piston 21 as an example:

[0085] At the beginning of the reciprocating motion cycle of the piston 21, the piston 21 is located at the first position, the glue inlet 14 is connected to the accommodating chamber 11 through the third connecting port 113, and the external glue supply mechanism first supplies glue to the accommodating chamber 11 through the glue inlet 14. At this time, the glue in the accommodating chamber 11 is located between the piston 21 and the second position.

[0086] After the glue supply is completed, the piston 21 first moves from the first position toward the third position, and the piston 21 moves along the first direction. The accommodating space between the piston 21 and the second position is reduced, and the glue between the piston 21 and the second position in the accommodating chamber 11 is squeezed. Under the pushing pressure of the piston 21, the glue in the accommodating chamber 11 flows toward the first connecting port 111, and finally the glue is discharged from the first glue outlet 12 through the first connecting port 111.

[0087] Next, the piston 21 moves from the third position toward the second position, and the piston 21 continues to move along the first direction. During the movement of the piston 21 from the third position to the second position, the accommodating space between the piston 21 and the second position continues to decrease, and the glue between the piston 21 and the second position in the accommodating chamber 11 continues to be squeezed. Under the pushing pressure of the piston 21, the glue in the accommodating chamber 11 continues to flow toward the first connecting port 111, and finally flows out from the first glue outlet 12 through the first connecting port 111.

[0088] In the process of the piston 21 moving from the third position to the second position, the accommodation space between the first position and the piston 21 continues to increase, and the glue entering the accommodation chamber 11 through the glue inlet 14 from the external glue supply mechanism also continuously occupies the accommodation space between the first position and the piston 21 in the accommodation chamber 11.

[0089] When the piston 21 reaches the second position, the glue contained between the piston 21 and the second position is discharged from the first glue outlet 12 under the pushing action of the piston 21, and at this time, the glue supply mechanism also completes the glue supply to the accommodation space between the piston 21 and the first position in the accommodation chamber 11. The glue inlet 14 is isolated from the accommodation chamber 11, and the second glue outlet 13 is connected to the accommodation chamber 11 through the second communication port 112.

[0090] Then, the piston 21 starts to return. The piston 21 moves from the second position toward the third position. The piston 21 moves in a second direction opposite to the first direction. During the movement of the piston 21 from the second position to the third position, the accommodation space between the piston 21 and the first position is reduced, and the glue between the piston 21 and the first position in the accommodation chamber 11 is squeezed. Under the pushing pressure of the piston 21, the glue in the accommodation chamber 11 flows toward the second communication port 112, and finally flows out from the second glue outlet 13 through the second communication port 112.

[0091] Next, the piston 21 moves from the third position toward the first position, and the piston 21 continues to move in the second direction. During the movement of the piston 21 from the third position to the first position, the accommodating space between the piston 21 and the first position continues to decrease, and the glue between the piston 21 and the first position in the accommodating chamber 11 is continuously squeezed. Under the pushing pressure of the piston 21, the glue in the accommodating chamber 11 continues to flow toward the second connecting port 112, and finally flows out from the second glue outlet 13 through the second connecting port 112.

[0092] When the piston 21 reaches the first position, the glue contained between the piston 21 and the second position is ejected from the second glue outlet 13 under the pushing action of the piston 21 .

[0093] Thus, the glue discharging process of the glue discharging mechanism 100 in one reciprocating motion cycle of the piston 21 is completed.

[0094] In the above technical solution, by making the second connecting port 112 and the third connecting port 113 both located between the first position and the third position, and making the first connecting port 111 located on the side of the second position away from the third position, the positions of the first connecting port 111, the second connecting port 112 and the third connecting port 113 are reasonably arranged, so as to facilitate the purpose of the glue discharging mechanism 100 discharging glue during the reciprocating motion of the piston 21, so that when the piston 21 moves from the first position to the second position, the glue discharging mechanism 100 discharges glue through the first glue discharging port 12, and when the piston 21 moves from the second position to the first position, the glue discharging mechanism 100 discharges glue through the second glue discharging port 13.

[0095] refer to Figure 1-Figure 4In some embodiments, the accommodating chamber 11 has a first side wall 151 and a second side wall 152 along the first direction, the first connecting port 111 is formed on the first side wall 151, the push rod 22 passes through the second side wall 152, the second connecting port 112 is formed on the peripheral wall 153 of the accommodating chamber 11, and the circumference of the accommodating chamber 11 is perpendicular to the first direction.

[0096] The push rod 22 passing through the second side wall 152 receives power and moves in the first direction, and the push rod 22 drives the piston 21 to move in the first direction toward the direction close to the second side wall 152. The glue in the accommodating chamber 11 also flows out from the first glue outlet 12 through the first communication port 111 formed in the first side wall 151 under the pushing action of the piston 21 in the first direction. The push rod 22 passing through the second side wall 152 receives power and moves in the second direction, and the push rod 22 drives the piston 21 to move in the second direction toward the direction close to the first side wall 151. The glue in the accommodating chamber 11 also flows out from the second glue outlet 13 through the second communication port 112 formed in the peripheral wall 153 under the pushing action of the piston 21 in the second direction.

[0097] In the above technical solution, by forming the first communication port 111 on the first side wall 151 of the accommodating chamber 11, the push rod 22 is provided through the second side wall 152 of the accommodating chamber 11, and the second communication port 112 is formed on the peripheral wall 153 of the accommodating chamber 11, the first communication port 111, the second communication port 112 and the push rod 22 are respectively provided on different walls of the accommodating chamber 11, the positions are reasonably provided and the accommodating chamber 11 as a whole can maintain a high structural strength, so that the structural layout of the glue dispensing mechanism 100 is reasonable. By allowing the push rod 22 to be provided through the second side wall 152 of the accommodating chamber 11, the push rod 22 can drive the piston 21 to apply positive pressure to the glue in the accommodating chamber 11 along the first direction or along the second direction opposite to the first direction, so that the piston 21 can more easily push the glue in the accommodating chamber 11 to dispense.

[0098] refer to Figure 2 In some embodiments, the second communication port 112 is located on the bottom wall of the accommodating cavity 11 .

[0099] In the above technical solution, when the piston 21 moves along the first direction, the piston 21 applies a driving force along the first direction toward the glue in the accommodating chamber 11. Under the action of the driving force, the glue in the accommodating chamber 11 needs to be discharged from the first glue outlet 12 through the first connecting port 111 located on the first side wall 151. The direction in which the driving force is applied is consistent with the glue outlet direction, so that the glue in the accommodating chamber 11 is easier to be discharged from the first glue outlet 12; when the piston 21 moves along the second direction, the piston 21 applies a driving force along the second direction toward the glue in the accommodating chamber 11. Under the action of the driving force, the glue in the accommodating chamber 11 needs to be discharged from the second glue outlet 13 through the second connecting port 112 located on the bottom wall. The direction in which the driving force is applied is at an angle to the glue outlet direction, so that the glue in the accommodating chamber 11 is not easy to be discharged from the second glue outlet 13.

[0100] When the piston 21 moves along the second direction, the piston 21 pushes the glue in the accommodating chamber 11 to flow toward the second connecting port 112. By making the second connecting port 112 located at the bottom wall of the accommodating chamber 11, the glue in the accommodating chamber 11 will also flow toward the second connecting port 112 under the action of gravity. Therefore, under the combined action of the gravity of the glue and the driving force of the piston 21, the glue in the accommodating chamber 11 is more likely to be discharged through the second connecting port 112 and the second glue outlet 13 connected to the second connecting port 112, so that the glue discharge amount per unit time of the first glue outlet 12 and the second glue outlet 13 of the glue discharge mechanism 100 is more likely to be consistent, thereby avoiding the glue discharge mechanism 100 being unable to meet the use requirements due to inconsistent glue discharge amount per unit time of the first glue outlet 12 and the second glue outlet 13.

[0101] refer to Figure 3-Figure 4 In some embodiments, the first glue outlet 12 and the second glue outlet 13 have the same glue outlet direction.

[0102] In the above technical solution, by making the glue discharge directions of the first glue outlet 12 and the second glue outlet 13 the same, the glue discharge direction of the glue discharge mechanism 100 through the first glue outlet 12 and the glue discharge direction of the second glue outlet 13 can be made consistent, so that the glue discharge mechanism 100 can conveniently supply glue to the object receiving glue along the same glue discharge direction.

[0103] In some embodiments, the cross-sectional areas of the first glue outlet 12 and the second glue outlet 13 are the same.

[0104] The cross section of the first glue outlet 12 is a cross section obtained by cutting along a bottom wall perpendicular to the first glue outlet 12 ; the cross section of the second glue outlet 13 is a cross section obtained by cutting along a bottom wall perpendicular to the second glue outlet 13 .

[0105] In the above technical solution, by making the cross-sectional areas of the first glue outlet 12 and the second glue outlet 13 the same, the glue discharge amount and glue discharge pressure of the glue discharge mechanism 100 from the first glue outlet 12 and the glue discharge amount and glue discharge pressure when discharging glue from the second glue outlet 13 can be consistent, which is beneficial to improving the stability of the glue discharge amount of the glue discharge mechanism 100.

[0106] In a second aspect, the utility model provides a glue coating device, comprising: a glue supply mechanism and the above-mentioned glue outlet mechanism 100 , wherein the glue supply mechanism has a glue supply port, and the glue supply port is connected to the glue inlet 14 .

[0107] The glue supply mechanism supplies glue into the accommodating cavity 11 of the glue outlet mechanism 100 through the glue supply port and the glue inlet 14 .

[0108] In the above technical solution, by providing the above glue discharging mechanism 100 , the glue discharging amount of the glue discharging mechanism 100 in one reciprocating motion cycle of the glue pushing member 2 can be increased.

[0109] Refer to the following Figure 1-Figure 5 The glue dispensing mechanism 100 according to some embodiments of the present invention is described.

[0110] The glue discharging mechanism 100 includes a cylinder 1 and a glue pushing member 2, wherein the glue pushing member 2 is movably disposed in the cylinder 1. The cylinder 1 includes a cylinder body 15, a three-way pipe 16 and a glue discharging pipe 17, wherein the cylinder body 15 extends along a first direction, the glue discharging pipe 17 is close to one end of the cylinder body 15 along the first direction, and the three-way pipe 16 is located at the other end of the cylinder body 15 along the first direction.

[0111] An accommodating chamber 11 is defined in the cylinder body 15, and the accommodating chamber 11 has a first side wall 151 and a second side wall 152 along a first direction. A first connecting port 111 is formed on the first side wall 151 of the accommodating chamber 11. The accommodating chamber 11 also has a peripheral wall 153 located between the first side wall 151 and the second side wall 152, and a second connecting port 112 is formed on the peripheral wall 153 of the accommodating chamber 11.

[0112] One end of the glue outlet pipe 17 is connected to the first communication port 111 of the accommodating chamber 11, and is communicated with the accommodating chamber 11 through the first communication port 111. The other end of the glue outlet pipe 17 is formed with a first glue outlet 12. The three-way pipe 16 is communicated with the accommodating chamber 11 through the second communication port 112. The three-way pipe 16 includes a first tube body 161, a second tube body 162 and a third tube body 163. The first tube body 161 is connected to the second communication port 112, one end of the second tube body 162 is connected to the first tube body 161, and the other end of the second tube body 162 is formed with a second glue outlet 13. One end of the third tube body 163 is connected to the first tube body 161, and the other end of the third tube body 163 is formed with a glue inlet 14.

[0113] The first glue outlet 12 discharges glue along a first direction, and the second glue outlet 13 also discharges glue along the first direction. The first glue outlet 12 and the second glue outlet 13 discharge glue in the same direction.

[0114] The glue discharging mechanism 100 further includes a first switch valve 3 and a second switch valve 4. The first switch valve 3 is disposed between the first tube body 161 and the third tube body 163, and is used to connect or disconnect the glue inlet 14 and the accommodating chamber 11. The second switch valve 4 is disposed between the second tube body 162 and the third tube body 163, and is used to connect or disconnect the second glue discharging port 13 and the accommodating chamber 11.

[0115] When the first switch valve 3 is opened, the first tube body 161 is connected to the third tube body 163, and the glue inlet 14 located at the other end of the third tube body 163 is connected to the accommodating chamber 11 through the first tube body 161 and the second connecting port 112; when the first switch valve 3 is closed, the first tube body 161 is separated from the third tube body 163, and the glue inlet 14 located at the other end of the third tube body 163 is separated from the accommodating chamber 11.

[0116] When the second switch valve 4 is opened, the second tube body 162 is connected to the third tube body 163, and the second glue outlet 13 located at the other end of the second tube body 162 is connected to the accommodating chamber 11 through the first tube body 161 and the second connecting port 112; when the second switch valve 4 is closed, the first tube body 161 is separated from the second tube body 162, and the second glue outlet 13 located at the other end of the second tube body 162 is separated from the accommodating chamber 11.

[0117] The rubber pusher 2 includes a piston 21 and a push rod 22. The push rod 22 is disposed through the second side wall 152 of the accommodating chamber 11. A portion of the push rod 22 is located in the accommodating chamber 11 and connected to the piston 21. The other portion of the push rod 22 is located outside the cylinder body 1. One end of the push rod 22 is connected to the piston 21 to drive the piston 21 to move. The piston 21 is reciprocatingly disposed in the accommodating chamber 11. The piston 21 reciprocates between a first position and a second position in the accommodating chamber 11. When the piston 21 moves from the first position to the second position, the piston 21 moves in the first direction. When the piston 21 moves from the second position to the first position, the piston 21 moves in the second direction.

[0118] There is a third position between the first position and the second position. The second communication port 112 is located between the first position and the third position. The first communication port 111 is located on a side of the second position away from the third position.

[0119] The working process of the glue discharging mechanism 100 during one reciprocating motion of the piston 21 is as follows:

[0120] First, the first switch valve 3 is opened to connect the glue inlet 14 with the accommodating chamber 11 through the second connecting port 112; the second switch valve 4 is closed to isolate the second glue outlet 13 from the accommodating chamber 11; the external glue supply mechanism supplies glue into the accommodating chamber 11 through the glue inlet 14 and the second connecting port 112;

[0121] Next, after the glue supply is completed, the push rod 22 receives power and moves along the first direction, the push rod 22 drives the piston 21 to move along the first direction, the piston 21 moves along the first direction from the first position to the third position, and the piston 21 pushes the glue in the accommodating chamber 11 along the first direction to be discharged from the first glue outlet 12 through the first connecting port 111; when the piston 21 moves to the third position, the external glue supply mechanism supplies glue again into the accommodating chamber 11 through the glue inlet 14 and the second connecting port 112;

[0122] Then, the piston 21 continues to move from the third position to the second position along the first direction. During this movement, the piston 21 continues to push the glue in the accommodating chamber 11 along the first direction to be discharged from the first glue outlet 12 through the first communication port 111. When the piston 21 moves to the second position along the first direction, the second glue supply is completed.

[0123] Next, the push rod 22 receives power and moves in a second direction opposite to the first direction, and the push rod 22 drives the piston 21 to move in the second direction. The piston 21 moves from the second position to the first position along the second direction, and the piston 21 pushes the glue in the accommodating chamber 11 along the second direction to discharge the glue from the second connecting port 112 to the second glue outlet 13.

[0124] Finally, when the piston 21 moves along the second direction to the first position, the process of one reciprocating motion of the piston 21 ends.

[0125] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0126] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A glue discharging mechanism, characterized in that: include: A cylinder body, the cylinder body having a containing cavity and a first glue outlet, a second glue outlet and a glue inlet which are suitable for being communicated with the containing cavity, the containing cavity being used for containing glue; A rubber pushing member, the rubber pushing member comprises a piston and a push rod, the piston is reciprocatingly disposed in the accommodating cavity, one end of the push rod is connected to the piston to drive the piston to move; The piston is configured to move in a first direction to push the glue in the accommodating chamber out of the first glue outlet, and to move in a second direction opposite to the first direction to push the glue in the accommodating chamber out of the second glue outlet.

2. The glue discharging mechanism according to claim 1, characterized in that: A first communicating port and a second communicating port are formed on the wall of the accommodating cavity. The first glue outlet is suitable for communicating with the accommodating cavity through the first communicating port, and the second glue outlet is suitable for communicating with the accommodating cavity through the second communicating port. The first communicating port and the second communicating port are located at both ends of the cylinder body along the first direction.

3. The glue discharging mechanism according to claim 2, characterized in that: A third communication port is formed on the wall of the accommodating cavity, the glue inlet is adapted to be connected with the accommodating cavity through the third communication port, and the third communication port and the second communication port are located at the same end of the cylinder body along the first direction; Wherein, the accommodating cavity can be selectively communicated with one of the glue inlet and the second glue outlet and can be selectively separated from the other of the glue inlet and the second glue outlet.

4. The glue discharging mechanism according to claim 3, characterized in that: The third communication port and the second communication port are the same communication port.

5. The glue discharging mechanism according to claim 4, characterized in that: The cylinder body includes a cylinder body, a three-way pipe and a glue outlet pipe, the accommodating cavity is defined in the cylinder body, one end of the glue outlet pipe is connected to the first connecting port and the other end of the glue outlet pipe forms the first glue outlet, the three-way pipe includes a first pipe body, a second pipe body and a third pipe body, the first pipe body is connected to the second connecting port, one end of the second pipe body is connected and communicated with the first pipe body, the other end of the second pipe body forms the second glue outlet, one end of the third pipe body is connected and communicated with the first pipe body, and the other end of the third pipe body forms the glue inlet.

6. The glue discharging mechanism according to claim 5, characterized in that: The glue discharging mechanism comprises: A first switch valve is provided between the first tube body and the third tube body, and is used to connect or disconnect the glue inlet and the accommodating cavity; The second switch valve is disposed between the first tube body and the second tube body, and is used for connecting or isolating the second glue outlet and the accommodating cavity.

7. The glue discharging mechanism according to claim 3, characterized in that: The piston reciprocates between a first position and a second position. When the piston moves from the first position to the second position, the piston moves along the first direction. When the piston moves from the second position to the first position, the piston moves along the second direction. There is a third position between the first position and the second position. The second communication port and the third communication port are both located between the first position and the third position. The first communication port is located on a side of the second position away from the third position.

8. The glue discharging mechanism according to claim 4, characterized in that: The accommodating chamber has a first side wall and a second side wall along the first direction, the first connecting port is formed on the first side wall, the push rod is penetrated through the second side wall, the second connecting port is formed on the peripheral wall of the accommodating chamber, and the circumference of the accommodating chamber is perpendicular to the first direction.

9. The glue discharging mechanism according to claim 8, characterized in that: The second communication port is located on the bottom wall of the accommodating cavity.

10. The glue discharging mechanism according to any one of claims 1 to 9, characterized in that: The first glue outlet and the second glue outlet have the same glue outlet direction; and / or the first glue outlet and the second glue outlet have the same cross-sectional area.

11. A glue coating device, characterized in that: include: A glue supply mechanism, wherein the glue supply mechanism has a glue supply port; According to the glue discharging mechanism according to any one of claims 1 to 10, the glue supply port is connected to the glue inlet port.

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